Finding the Fourth Proportional to 203,471.46, 280,793.99 and 112,831.25
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Solution
The fourth proportional to 203,471.46, 280,793.99 and 112,831.25 is: 155,708.99
Step by Step Solution
- Step 1: Write the proportion equation
203,471.46 : 280,793.99 = 112,831.25 : x - Step 2: Convert to fraction form
203,471.46/280,793.99 = 112,831.25/x - Step 3: Cross multiply
203,471.46x = 280,793.99 × 112,831.25 - Step 4: Simplify right side
203,471.46x = 31,682,335,762.30 - Step 5: Solve for x
x = 31,682,335,762.30/203,471.46 - Step 6: Final answer
x = 155,708.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.